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CVE-2026-44767 is an allowlist enforcement flaw in UI5 Web Components Base affecting theme root handling. The vulnerable logic in setThemeRoot() fails to properly enforce the sap-allowed-theme-origins policy and accepts an attacker-controlled absolute cross-origin URL as a theme root even when no sap-allowed-theme-origins meta policy is present. The same bypass is also reachable through the sap-themeRoot URL parameter. As a result, attacker-supplied input can be used to construct a stylesheet link element that loads CSS from an attacker-controlled origin into the victim page. This results in cross-origin CSS injection rather than script execution, but still enables meaningful manipulation of the rendered interface and limited information disclosure through CSS-based techniques.
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An allowlist bypass / cross-origin CSS injection vulnerability affecting UI5 Web Components Base.
An allowlist bypass and cross-origin CSS injection vulnerability affecting UI5 Web Components Base.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.